You're going to watch a health expert talk about the benefits of smiling. Before you watch, choose the best answer for each of the statements below, then watch the video to confirm or correct your answers.

1. The size of young people's smiles could help researchers predict the quality of their future:
1. diet
2. marriage
3. career
2. The span of a person's smile is connected to:
1. how rich they will be
2. how many children they will have
3. how long they will live
3. A third of us smile more than:
1. 20 times per day
2. 30 times per day
3. 40 times per day
4. Children can smile as many as:
1. 300 times per day
2. 400 times per day
3. 500 times per day